fetch-mock

Mocking a simple GET request

This feature allows you to mock a simple GET request. The code sample demonstrates how to mock a GET request to 'https://api.example.com/data' and return a JSON object with sample data.

const fetchMock = require('fetch-mock');
fetchMock.get('https://api.example.com/data', { data: 'sample data' });

fetch('https://api.example.com/data')
  .then(response => response.json())
  .then(data => console.log(data));

Mocking a POST request with specific body

This feature allows you to mock a POST request with a specific request body. The code sample demonstrates how to mock a POST request to 'https://api.example.com/submit' and return different responses based on the request body.

const fetchMock = require('fetch-mock');
fetchMock.post('https://api.example.com/submit', (url, options) => {
  if (options.body === JSON.stringify({ key: 'value' })) {
    return { status: 'success' };
  } else {
    return { status: 'error' };
  }
});

fetch('https://api.example.com/submit', {
  method: 'POST',
  body: JSON.stringify({ key: 'value' })
})
  .then(response => response.json())
  .then(data => console.log(data));

Mocking with delay

This feature allows you to mock a request with a delay. The code sample demonstrates how to mock a GET request to 'https://api.example.com/delayed' and return a response after a 1-second delay.

const fetchMock = require('fetch-mock');
fetchMock.get('https://api.example.com/delayed', new Promise(resolve => setTimeout(() => resolve({ data: 'delayed data' }), 1000)));

fetch('https://api.example.com/delayed')
  .then(response => response.json())
  .then(data => console.log(data));

Mocking with different response statuses

This feature allows you to mock requests with different HTTP response statuses. The code sample demonstrates how to mock a GET request to 'https://api.example.com/not-found' and return a 404 status.

const fetchMock = require('fetch-mock');
fetchMock.get('https://api.example.com/not-found', 404);

fetch('https://api.example.com/not-found')
  .then(response => {
    if (!response.ok) {
      throw new Error('Network response was not ok');
    }
    return response.json();
  })
  .catch(error => console.error('Fetch error:', error));